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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You set up a compressed full backup file from mysqlbackup by using the --compress option for MySQL Database backup. You are required to restore the database and apply the log.
Which two options should you add to the mysqlbackup to achieve the restoration of the database?

A) --uncompress-and-apply-log
B) --apply-log-and-copy-back
C) --decompress
D) --uncompress
E) --copy-back-and-apply-log

2. Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

A) You forgot to enable port 3306.
B) The OCI instance is still in the "creation" process.
C) The opc user can be used to access MySQL only with the created SSH-Key.
D) Only root is allowed to access from non-localhost.
E) You forgot to create the correct SSL/TLC certificate during the setup process.

3. An existing MySQL Database environment has been doing backup and restore in a logical way by using the mysq1dump and mysq1 client utilities. When the backup is started using mysqldump with single-transaction mode, the existing application has long wait time. When the restore is required, it takes more than three hours to restore.
What two are benefits of using mysqlbackup from MySQL Enterprise Backup in this situation?

A) MySQL Enterprise Backup provides tape backup integration by default. It has the virtual tape option, which allows backup to tape device directly without extra third-party software integration.
B) mysqlbackup utilities dump the full database into a SQL file, which is imported into the mysql client in single-thread mode. mysqlbackup restores data from physical backups. Physical backup methods are faster than logical methods because they involve only file coping without conversion.
C) mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.
D) MySQL Enterprise Backup does not back up system data so that it is much faster.
E) mysqlbackup can back up tables with the InnoDB engine without blocking. The backup is hot with InnoDB. Together with Incremental Backup, mysqlbackup from MySQL Enterprise Backup shortens the backup windows.

4. You need to change the password level for a test system.
Which two allow to change this level before you create new test user/passwords?

A) Add validate_password_policy=,new level, in the [mysqld] section of the MySQL configuration file.
B) Add validate_password=,new level, in the [security] section of the MySQL configuration file.
C) SET GLOBAL force_password_complex_policy=0;
D) SET GLOBAL validate_password_policy=,new level,;

5. You get a maintenance-notification about your MySQL Enterprise Edition in Oracle Cloud Infrastructure (OCI) Compute instance. What is re the implication?

A) You need to agree to the maintenance windows. If not, you are not affected by the outage.
B) You can expect an outage of your MySQL OCI instance during the planned time..
C) Depending on the planned outage, you may not be affected by it. You need to read the maintenance details in the support notice.
D) There are no maintenance operations planned. You need to do them manually.

Solutions: